Properties of the Number -239778

Two Hundred Thirty-Nine Thousand Seven Hundred Seventy-Eight

Basics

Value: -239779 → -239778 → -239777

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 7 × 11 × 173

Divisors: 1, 2, 3, 6, 7, 9, 11, 14, 18, 21

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010100010100010

Octal: -724242

Duodecimal: -B6916

Hexadecimal: -3a8a2

Square: 57493489284

Square Root: 489.6713183350644

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Triangular numbers that are palindromes in base 5. A350991

Triangular numbers for which the sum of the digits is a square. A117404

G.f.: A(x) = ∑_n>=0 xⁿ*A(x)^n·2ⁿ/2. A177401

Partial sums of the squarefree integers that are triangular. A194080